https://community.hpe.com/t5/disk-enclosures/does-installing-an-roc-destroy-existing-data/m-p/2518634#M1693 If you add an ROC and second hard drive to an existing NT4 server and then configure Raid 1 via the ROC, does the existing data on the original disk get destroyed. Wed, 18 Apr 2001 23:00:00 GMT Ayman Altounji 2001-04-18T23:00:00Z https://community.hpe.com/t5/disk-enclosures/does-installing-an-roc-destroy-existing-data/m-p/2518634#M1693 If you add an ROC and second hard drive to an existing NT4 server and then configure Raid 1 via the ROC, does the existing data on the original disk get destroyed. Wed, 18 Apr 2001 23:00:00 GMT https://community.hpe.com/t5/disk-enclosures/does-installing-an-roc-destroy-existing-data/m-p/2518634#M1693 Ayman Altounji 2001-04-18T23:00:00Z https://community.hpe.com/t5/disk-enclosures/does-installing-an-roc-destroy-existing-data/m-p/2518635#M1694 yes the data will be destroyed since the ROC was not in the system when you had the initial drive in it. Wed, 18 Apr 2001 23:00:01 GMT https://community.hpe.com/t5/disk-enclosures/does-installing-an-roc-destroy-existing-data/m-p/2518635#M1694 Ayman Altounji 2001-04-18T23:00:01Z